Refrigerating apparatus



1 2 v 1,642,922 Sept. 20 1927. L. B. GREEN REFRIGERATING APPARATUS Filed Jan. 16, 1926 5 Sheets-Sheet 1 uenior? 2 192 Sept 7 L. B. GREEN I REFRIGERATING APPARATUS Filed Jan. 16, 1926 5 Sheets-Sheet 2 1,642,922 p 1927' 1 B. GREEN jzveiz for. 062 6. 3m 1W\MM% Patented Sept. 20, 1927.

UNITED STATES I 1,642,922 PATENT OFFICE.

LEE B. GREEN, OF LAKEWOOD, OHIO, ASSIGNOR OF ONE-THIRD TO EARL L. JONES, OF

CLEVELAND, OHIO; ONE-THIRD TO CASSIUS L. FINNEY, OF CANTON, OHIO; AND ONE- THIRD TO CONRAD B. KRAUSE, OF CLEVELAND, OHIO.

REFRIGERATING APPARATUS.

Application filed January 16, 1926. Serial No. 81,627.

This invention relates to refrigerating apparatus and more particularly to apparatus in the form of a portable unit for cooling drinking water. The invention consists in certain improvements over the invention described and claimed in my prior application No. 717,236, filed June 2, 1924.

It is one of the objects of the present invention to provide an apparatus, of the type referred to, that will have its units so ar ranged that the compressor and its motor will be mounted on the base of the machine. so as to be substantially supported and avoid vibration, and the cooling air will be forced downwardly through the apparatus so as to prevent the heat, generated in the motor, from affecting the efiiciency of the cooling coil.

Other objects of the invention and the features of novelty will be apparent from the following description taken in connection with the accompanying drawings, of which:

Fig. 1 is a vertical section through the upper portion of an apparatus embodying my invention;

Fig. 2 is a similar View of the lower portion of the apparatus and constitutes a continuation of Fig. 1; and

Fig. 3 is a horizontal section on the line 33 of Fig. 1.

Referring to the drawings, 10 indicates a base having a series of peripheral openings 11 for the discharge of air. A bracket 12 is mounted on the base 10 and carries an electric motor 13 which is secured to the bracket by bolts 14, which are adjustable in slots 15 for the purpose of raising or lowering the motor in order to adjust the tension of the belt 16 which drives the compressor 17, the latter having a pulley 18 over which the belt 16 runs. The compressor 17 has a base 19 that is secured on the upper end of the bracket 12 but the particular details of construction of the compressor and the motor form no art of the present invention and a description thereof is, therefore, omitted.

A plurality of posts 20, preferably three, have their lower ends secured to the base 10, as indicated at 21 and support a platform 22 on their upper ends. A cooling chamber or receptacle 23, for the drinking water, is supported on the platform 22 and has a tubular supply extension 24. A jacket 25 is secured to the peripheral flange 26, of the platform 22, and has a removable cover 27 that is provided with a funnel-shaped central depression 28 that enters the extension 24 and forms a supporting means for an inverted bottle 29 from which the water is supplied to the chamber 23. The chamber 23 is provided with a discharge pipe 30 on the outer end of which there is a faucet 31 for dispensing the drinking water. There is an expansion coil 32 within the chamber 23 that is normally submerged in the Water, in the 'chamber, for the purpose of cooling this water. An expansion valve is indicated at 33 and this may be of any of the usual types of expansion valves that are commonly used with refrigerating apparatus, this expansion valve having a discharge pipe 34 that connects with one end of the coil 32. A pipe 35 conducts the refrigerant from the lower end of the cooling coil 36 to the expansion valve. The cooling coil 36 is suspended from the platform 22 by a plurality of hangers, one of Which is indicated at 37 At 38, there is indicated the return pipe from the expansion coil 32 which leads to the intake side of the compressor 17. The discharge pipe, from the compressor, is indicated at 39 and leads vto an oil separator 40, from which there is a pipe 41 that conducts the compressed refrigerant to the u per end of the cooling coil 36, whence the re rigerant circulates through the coil to the lower end thereof, from the latter through the pipe 35 to the expansion valve 33. Only a portion of the pipe 35 is shown, for convenience, but it will be understood that the pipe is continuous from the lower end of the coil 36 to the expansion valve 33.

A thermostat 42 is arranged in the chamber 23 and has cables 43 and 44 connected therewith, in the usual manner, for controlling the motor 13.

An insulating block 45 is secured to the underside of the platform 22 and carries a bracket 46 on which there is supported a motor 47 which operates a fan 48. A jacket 49 encloses the space between the base 10 and the platform 22, the upper part of this jacket, opposite the coil 36, being perforated and the upper edge of the jacket, indicated at 50, being spaced slightly below the platform 22 and being concealed by th lower edge of the jacket 25,

A pipe 51 returns lubricant from the separator -l-0 to the compressor 17 so that the amount of lubricant that passes over with the compressed refrigerantwill be a minimum.

A. basin 52 is secured on the side of the jacket 53 and a perforated plate 54 is adapt ed to support a drinking glass for receiving the *ater from the faucet 31.

The operation of the apparatus, with reference to the handling of the refrigerant, conforms to the usual practice and will be fully understood from the foregoing description. The particular improvement consists in the relative arrangement of the cooling coil 36, the fan 48 and the compressor and its motor so that the fan will serve to draw the cooling air through the perforated portion of the jacket 49 and thence through the cooling coil 36, the air being then forced by the fan downwardly over the compressor and its motor and out through the openings 11 in the base. By this relative arrangement of parts and the downward circulation of the cooling air, the heat generated in the motor and compressor is carried away from the cooling coil 36 so that this heat does not detriinentally affect the efiiciency of this coil. In addition, the arrangement insures a constant Supply of fresh air, at the room temperature, for cooling the coil 36.

The arrangement of the elements of the apparatus also permits the parts to be read ily assembled and disassembled and all of the parts are thus made easily accessible.

Having thus described my invention, I claim:

1. In refrigerating apparatus, the combireaaeaa nation of a cooling chamber, an expansion coil in said chamber, a cooling coil arranged below said chamber and having its outlet end connected with the inlet end of said expansion coil, a compressor and motor for operating the same arranged below said cooling coil, said compressor having its intake connected with the outlet end of said expansion coil and its discharge connected with the inlet end of said cooling coil, an apertured base on which the aforesaid elements are mounted, a jacket surrounding the space occupied by said cooling coil, said com pressor and said motor, said jacket being perforated adjacent the cooling coil, and a fan located within said cooling coil and operating to draw air inwardly through the perforated portion of said jacket and force it downwardly over said compressor and motor and out through said base.

2. In refrigerating apparatus, the combination of an apertured base, a platform, posts on said base supporting said platform, a cooling chamber carried by said platform, a cooling coil suspended from said platform, a compressor and motor on said base below said cooling coil, a jacket enclosing the space between said base and said platform and having its upper portion perforated, and a fan suspended from said platform within said cooling coil and serving to draw air inwardly through the perforated portion of said jacket and force it downwardly over said compressor and motor and out through i said base.

In testimony whereof, I hereunto ailix my signature.

LEE B. GREEN. 

